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Headphones
GB interest check on HP amp and USB DAC
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<blockquote data-quote="gbyleveldt" data-source="post: 13394" data-attributes="member: 122"><p>And some measurements as promised.</p><p></p><p>It actually looks as good as I had hoped, although there seems to be something a little funky happening on the Left channel in the THD plots. Looking at the right channel shows what is possible. Also, the SNR of better than -90dB is also encouraging.</p><p></p><p>Aaah crap, can't attach PDF...</p><p></p><p>Anyway, I'm trying to attach some pics.</p><p></p><p>PS. Oh ja, and did I say how nice it sounds?! I'm truly impressed with these little PCM2702 chips. Not only do they sound pretty good but they measure well too. I was quite surpised to say the least. Incredible amounts of detail, very quiet too. I'm using Foobar as my player of choice and using the Upsampling plugin to stream it to 96kHz. To me it sounds best upsampled, as I don't have any brickwall filters at the output of the PCM. Just a smooth top end roll off. I'm tempted to actually move the corner Frequency of the output filter up an octave, but many people won't be upsampling their audio streams, so it might be a bad idea. I'll still think about it. Anyway, I can understand now why so many people go bonkers over headphones.</p></blockquote><p></p>
[QUOTE="gbyleveldt, post: 13394, member: 122"] And some measurements as promised. It actually looks as good as I had hoped, although there seems to be something a little funky happening on the Left channel in the THD plots. Looking at the right channel shows what is possible. Also, the SNR of better than -90dB is also encouraging. Aaah crap, can't attach PDF... Anyway, I'm trying to attach some pics. PS. Oh ja, and did I say how nice it sounds?! I'm truly impressed with these little PCM2702 chips. Not only do they sound pretty good but they measure well too. I was quite surpised to say the least. Incredible amounts of detail, very quiet too. I'm using Foobar as my player of choice and using the Upsampling plugin to stream it to 96kHz. To me it sounds best upsampled, as I don't have any brickwall filters at the output of the PCM. Just a smooth top end roll off. I'm tempted to actually move the corner Frequency of the output filter up an octave, but many people won't be upsampling their audio streams, so it might be a bad idea. I'll still think about it. Anyway, I can understand now why so many people go bonkers over headphones. [/QUOTE]
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Audio and Video Talk
Headphones
GB interest check on HP amp and USB DAC
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